Today, Ubisoft and GameSpot DLX premiered a demo for the fourth installment in the famed Myst series of adventure games. The demo plops players in Atrus' room, which contains a number of objects, a trademark Myst puzzle, and an FMV flashback of Atrus' daughter (described in GameSpot's E3 PREVIEW). The demo can be DOWNLOADED NOW via GameSpot DLX.

Myst IV Revelation sends players back to the story of the first game, where the evil brothers Sirrus and Achenar were imprisoned inside two books. Atrus, their father, was implored to release them, however, and in the process, his daughter Yeesha disappears. Atrus sends players to search through four different ages, or worlds, to find his daughter.

Myst IV is being developed by Ubisoft Montreal and is scheduled for release for the PC in September.